the positive integers
111bijective numeration — noun A numeral system that uses digits to establish a bijection between finite strings and the positive integers, especially by k adic notation such as unary and decimal without a zero …
112discrete random variable — A random variable that can take only a certain specified set of individual possible values for example, the positive integers 1, 2, 3, . . . For example, stock prices are discrete random variables, because they can only take on certain values,… …
113natural numbers — plural noun the positive integers (whole numbers) 1, 2, 3, etc., and sometimes zero as well …
114Binomial coefficient — The binomial coefficients can be arranged to form Pascal s triangle. In mathematics, binomial coefficients are a family of positive integers that occur as coefficients in the binomial theorem. They are indexed by two nonnegative integers; the… …
115abc conjecture — The abc conjecture (also known as Oesterlé–Masser conjecture) is a conjecture in number theory, first proposed by Joseph Oesterlé and David Masser in 1985. The conjecture is stated in terms of three positive integers, a, b and c (whence comes the …
116Quadratic reciprocity — The law of quadratic reciprocity is a theorem from modular arithmetic, a branch of number theory, which shows a remarkable relationship between the solvability of certain quadratic equations modulo different prime moduli.Although it allows us to… …
117Berry paradox — The Berry paradox is a self referential paradox arising from the expression the smallest possible integer not definable by a given number of words. Bertrand Russell, the first to discuss the paradox in print, attributed it to G. G. Berry, a… …
11815 and 290 theorems — The 15 theorem of John H. Conway and W. A. Schneeberger (Conway Schneeberger Fifteen Theorem), proved in 1993, states that if an integral quadratic form with integral matrix represents all positive integers up to 15, then it represents all… …
119Evenness of zero — The number 0 is even. There are several ways to determine whether an integer is even or odd, all of which indicate that 0 is an even number: it is a multiple of 2, it is evenly divisible by 2, it is surrounded on both sides by odd integers, and… …
120C variable types and declarations — The C programming language has an extensive system for declaring variables of different types. The rules for the more complex types can be confusing at times, due to the decisions taken over their design. The principal decision is that the… …
